Frequencies for first 10,000 rows of extracoverageingap variable in planreport2011 dataset : Extra | Coverage in | Gap | Freq. Percent Cum. ------------+----------------------------------- | 8,362 83.62 83.62 Y | 1,638 16.38 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016